html,body {
    height: 100%;
    background-image: url(../image/3.jpg);
    background-repeat: no-repeat;
    background-position: -30px -250px;
    background-size:1500px;
}
.nav {
    width: 100%;
    height: 62px;
    background-color:dimgray;
    border-radius: 30px;
    align-items: center;
    color: aliceblue;
    display: flex;
    font-size: 20px;
    background-color: rgba(51, 51, 51, 0.4);
}
.nav img {
    width: 55px;
    height: 55px;
    border-radius: 30px;
    margin-left: 4px;
    margin-right: 8px;
}
.nav .spacer {
    width: 70%;
}
.nav a {
    color: rgb(255, 255, 255);
    text-decoration: none;
    font-weight: 200;
    padding: 0 15px;  
}

.container {
    width: 1000px;
    height: 735px;
    margin: 0 auto;
    display: flex;
    justify-content: space-between;
}

.container .container-left {
    height:100%;
    width: 200px;
}

.card {
    height: 300px;
    background-color: rgba(250, 250, 250, 0.8);
    border-radius: 20px;
    padding: 25px;
}

.card img {
    width: 150px;
    height: 150px;
    border-radius: 75px;
    text-align: center;
}

.card h3 {
    text-align: center;
}

.card a {
    display: block;
    text-align: center;
}

.space {
    width: 20px;
}
.container .container-right {
    height:100%;
    width: 730px;
    background-color: rgba(250, 250, 250, 0.8);
    border-radius: 20px;
}

.counter {
    display: flex;
    padding: 10px;
    justify-content: space-around;
}

.space {
    width: 20px;
    height: 20px;
}
